{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import math\n",
    "\n",
    "def circle_area(radius):\n",
    "    \"\"\"\n",
    "    Calculate the area of a circle given its radius.\n",
    "\n",
    "    Parameters:\n",
    "    radius (float): The radius of the circle.\n",
    "\n",
    "    Returns:\n",
    "    float: The area of the circle.\n",
    "    \"\"\"\n",
    "    return math.pi * radius**2"
   ]
  }
 ],
 "metadata": {
  "language_info": {
   "name": "python"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}
